Apparently, the a section of the pro gambling community moved a lot of money to bet the Chiefs just before the Smith announcement. Of course, the point spread has gone the other way now with the injury announcement, leaving that money at greater risk.
http://profootballtalk.nbcsports.com...smiths-injury/
If Rivers or the Chargers suddenly have some new injury issues or "personal matters" in the next day or so preventing guys from practicing and playing, we'll all sleep well knowing that the high stakes players in the gambling community are doing what they can, by whatever means necessary, behind the scenes, to try and claw back some of the points they just lost.